Dusting machine



ay 19, 1942- A. w. GUSTAFSON 2,283,805

DUSTING MACHINE v Filed Feb. 7. 1939 3 Sheets-Sheet 1' lnqenior zfuzufaan M By I Mm Attorneys 1942- A. w. G'USTAFSON DUSTING MACHINE Filed Feb. 7. 1939 3 Sheets-Sheet 2 Inventor May 19, 1942. A. w. us'rAFs N DUSTING MACHINE Filed Feb. 7, 1939 3 Sheets-Sheet 3 j uZaf bii V fimonm A itorneys Patented May 19, 1942 1 Claim.

This invention appertains to new and useful improvements in machines especially adapted for dusting growing crops with chemicals for the purpose of eradicating various types of parasites.

The principal object of the present invention is to provide a dusting machine of the character stated wherein the chemicals are kept thoroughly mixed and in a pulverized state.

Another important object of the invention is to provide a dusting machine wherein means is provided for executing an application of the chemicals over a wide range of the crops being treated.

These and other objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings Figure 1 represents a top plan view of the aparatus.

Figure 2 is a rear elevational'view.

Figure 3 is a side elevational view.

Figure 4 is a section on the line 4--4 of Figure 3.

Figure 5 is a section on the line 5-5 of Figure 4.

Figure 6 is a section on the line 6-6 of Figure 4.

Figure '7 is a sectional view on the line 1-1 of Figure 2.

Figure 8 is a fragmentary side elevational view of the blower.

Referring to the drawings wherein like numerals designate like parts, it can be seen that the apparatus is generally referred to by the numeral 5 in Figure 3 and consists of the base frame 6 attached in a suitable manner to an agricultural machine (shown in broken lines in Figure 3).

Rising from the frame 6 is the upright 1, the upper portion of which carries a clamp collar 8 for embracing one end of the elongated barrel 9. A second upright l carries the collar H at its upper end for embracing the opposite end portion of the barrel 9.

Numeral l2 represents the chemical containing drum, the end walls of which are provided with tubular extensions l3 forming bearings circumscribing the end portions of the barrel 9.

Clamp rings IA on the inner side of the end walls of the drum [2 clamp the end portions of the cylindrical screen against the inner sides of the end walls of the drum l2 to support the screen in the cylindrical form shown in Figure 4.

In one end of the barrel 9 is the bearing assembly I6 through which extends the shaft 11, the shaft at its outer end carrying the multiple pulley I8 while attached to the inner end of th barrel is the elongated coil 19 serving as a feed screw for the chemicals falling into the barrel 9 through the opening 28 therein.

The coil l9 extends to the distal end of the barrel 9 and at this point the. barrel 9 extends downwardly as at 2| and attaches to the fan housing 22. The barrel 9 communicates with the interior of the housing 22 which is provided with openings in the side walls thereof through which a flanged tubing 23 extends, the latter serving as carriers for the bearings 24 through which the shaft 25 extends. One end of the shaft 25 carries the. pulley 26 while the opposite end carries the pulley 21. The fan blades 29 radiate from the shaft 25 in the housing 2a for the fan, and the belt 30 extending from the tractor or other machine .(shown in broken lines in Figure 3) guides the pulley 26 and shaft 25 while the pulley 21 by way of the belt 3!) drives the counter shaft 3| on which is the pulley 32. The belt 33 extends from over the pulley 32 and is trained over the drum l2, so that the drum I2 is driven from the shaft 31. The fan housing 29a has an axially located air opening 2517..

Furthermore, a variable or multiple pulley 34 is provided on the end of the shaft 3i adjacent the multiple pulley l3 and a belt 35 is trained over these multiple pulleys I8, the belt being adjustable on these pulleys to vary the drive for the feed coil l9. Extending inwardly from the drum 12 are the blades 31, the blades rotating with the drum to keep the material well pulverize Numeral 38 represents the spout from the blower and this communicates with the manifold pipe 39 which at its end is provided with extending sections 40 hingedly secured thereto as at 4|. From the sections 40 and to the section 39 extend the chemical spreading nozzles 42 in a rearward direction. Reduced tubes 43 extend from the sections 40 and terminate in laterally curved chemical spreading nozzles 44.

A suitable eccentric catch 45 can be provided between each of the sections 46 and the corresponding end of the tube 39 and a suitable gasket 46 can be provided in each of these joints.

The drum l2 has an opening 41 therein over which is swingable the closure 48. The closure 48 is hingedly secured as at 49 to the drum l2 and its free end is held by the rotary shaft 50 which has a reduced portion 5| which when located over the edge of the closure 48 frees the closure so that it can be swung to an open position. The shaft 50 is provided with an operating arm 52. It can now be seen that the chemicals are j'placed in the drum I2 and the drum is rotated on the barrel 9 by the belt 33. This results in the agitating of the contents of the drum and the sifting of the same through the screen I5 into the barrel 9 where the screw I9 carries the same into the blower unit from where it is discharged by way of the spout 38 by way of the manifold 39 and its extensions 40-40.

Whenever it is desired to reduce the length of the manifold assembly, the end sections 40-40 can be swung inwardly to the dotted line position shown in Figure 2 by releasing the fasteners 45.

While the foregoing specification sets forth the invention in specific terms, it is to be under stood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the claimed as new is:

In a machine of the character described, a drum having end walls, said end walls having openings therein, a barrel extending through the drum and the openings of the end walls, said barrel having an opening therein at the inside of the drum, feed means in the barrel, clamp rings circumscribing the barrel at the inner sides of the end walls, a cylindrical screen spacially disposed around the barrel at the inside of the drum and having its end portions turned inwardly and disposed between the end walls and the clamp rings, and securing means for the clamp rings.

invention, what is AUGUST W. GUSTAFSON. 

